A flange forging process

A flange and process technology, applied in the field of flange production, can solve problems such as time-consuming, save time, provide efficiency, and improve utilization.

Active Publication Date: 2021-04-13
济南泰康锻造股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: because the billet needs to be rotated frequently, it takes a lot of time

Method used

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  • A flange forging process

Examples

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Embodiment

[0035] Example: such as figure 1 Shown is a flange forging process disclosed in the present invention, step S1: cutting, using a band saw to cut a long blank with a square cross section, and cut it into multiple billets. The weight of each billet is 1.05 to 1.10 times the weight of the qualified flange. The required weight can be converted into the required volume of the billet through the relational formula of density, mass and volume, and then the length of the required billet can be calculated through the cross-sectional area of ​​the billet, and the required billet can be cut according to the length. Quality billets.

[0036] Step S2: heating, placing the billet in a natural gas furnace for heating, the temperature of the natural gas heating furnace is 1180°C~1220°C, so that the temperature of the billet is higher than the recrystallization temperature and lower than the solidus temperature.

[0037] Step S3: making a circle, the billet is placed on the circle making mol...

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PUM

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Abstract

The invention discloses a flange forging process, which belongs to the technical field of flange production, and comprises the following steps: step S1: cutting, cutting a long blank with a square cross section into a plurality of billets; step S2: heating, Place the billet in a heating furnace to heat, so that the temperature of the billet is higher than the recrystallization temperature and lower than the temperature of the solidus; step S3: making a round, placing the billet in a round mold, and forging the billet into a cylinder shape blank; step S4: free end, use the press to upset the heated blank, and then use the punch to punch the blank; S5: ring rolling, install the blank on the ring rolling machine for ring rolling, and expand the blank center hole; step S6: annealing, placing the billet in a resistance furnace for annealing; step S7, turning, turning the flange with a lathe. The present invention has the effect of improving the efficiency of forging.

Description

technical field [0001] The invention relates to the technical field of flange production, more specifically, it relates to a flange forging process. Background technique [0002] Forging is a processing method that uses forging machinery to apply pressure to metal blanks to cause plastic deformation to obtain forgings with certain mechanical properties, certain shapes and sizes. Forging can eliminate defects such as as-cast porosity produced in the metal smelting process and optimize the microstructure. At the same time, due to the preservation of complete metal flow lines, the mechanical properties of forgings are generally better than castings of the same material. Forging is the most common way in flange production. [0003] At present, the common flange manufacturing process includes the following steps S1: cutting, cutting the billet from the billet; step S2: heating, placing the billet in a heating furnace for heating, so that the temperature of the billet is higher t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21K1/32B21J1/04B21J5/08B21J5/10B21H1/06
CPCB21H1/06B21J1/04B21J5/08B21J5/10B21K1/32
Inventor 耿代溪张玉敬王海昶
Owner 济南泰康锻造股份有限公司
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